Login without password: SYS as SYSDBA
View all current databases: select */name from V$database;
View current database connection User: Show user
View all tables for current data: Select table_name from All_tables;
View structure: Table structure: DESC table1-Required in command Window mode
New Database User: Create user username identified by password
Authorization: Grant DBA to username
Change database user password: Alter user username identified by password
View all users in the database, provided that you are an account with DBA authority, such as Sys,system:select * from Dba_users
View all users you can manage: SELECT * from All_users
View Current User information: SELECT * FROM User_users
Export:exp system/[email protected] file=d:\daochu.dmp full=y
Import:imp system/[email protected] file=d:\daochu.dmp
Oracle Common Command Notes